3v4l.org

run code in 500+ PHP versions simultaneously
<?php var_dump(round(1.700000000000556, 12, PHP_ROUND_HALF_DOWN));
Output for 8.0.1 - 8.0.30, 8.1.0 - 8.1.34, 8.2.0 - 8.2.32, 8.3.0 - 8.3.33, 8.4.1 - 8.4.24, 8.5.0 - 8.5.9
float(1.700000000001)
preferences:
84.19 ms | 1143 KiB | 4 Q